Reviewed-by: Brad Volkin <bradley.d.vol...@intel.com>

On Fri, Apr 18, 2014 at 02:04:29PM -0700, Rodrigo Vivi wrote:
> From: Ben Widawsky <benjamin.widaw...@intel.com>
> 
> It seems we need this at least for the current platforms we have, but
> probably not later. In any event, it should cause too much harm as we do
> the same thing on several other platforms.
> 
> Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
> Signed-off-by: Rodrigo Vivi <rodrigo.v...@gmail.com>
> ---
>  drivers/gpu/drm/i915/intel_pm.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index a66000c..8d40786 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -4924,6 +4924,10 @@ static void gen8_init_clock_gating(struct drm_device 
> *dev)
>       I915_WRITE(GEN7_HALF_SLICE_CHICKEN1,
>                  _MASKED_BIT_ENABLE(GEN7_SINGLE_SUBSCAN_DISPATCH_ENABLE));
>  
> +     /* WaDisableDopClockGating:bdw May not be needed for production */
> +     I915_WRITE(GEN7_ROW_CHICKEN2,
> +                _MASKED_BIT_ENABLE(DOP_CLOCK_GATING_DISABLE));
> +
>       /* WaSwitchSolVfFArbitrationPriority:bdw */
>       I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL);
>  
> -- 
> 1.8.3.1
> 
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